Having defragmentation at regular intervals makes your data arranged in a more systematic order which makes the hard drive work less for accessing any of the data. The more quicker in the move of hard drive, lesser work load on the battery which helps your battery to last longer.

Tip 2. Reduce Processes:

Try to reduce the background processes which are not required. Also monitor the resource as how much usage it is accessing with the help of Windows Task Manager (in Windows). Make sure that if you are not using internet, it is safe to stop the non required programs which are running in the taskbar like the antivirus and or the firewall. Remove not necessary programs which are running during start-ups by launching the System Configuration Utility from Run – Msconfig – Tab Startup. Unclick the programs which are not required to launch and restart the computer once.

Tip 3. Apply Scheduled Tasks for Time Being:

Programs such as defragmentation or a virus scan should be scheduled for a time being when you are close to a power outlet.

Try to keep the CD-DVD Rom tray vaccant when not required. Also don’t leave any CD/DVDs inside the drives. A spinning disk inside the drive may extract the power from your battery.

Tip 6. Use local Devices:

Avoid using the plugin DVD rom / external drives which generally runs on batteries. You can transfer the content to the hard drive or you can also run virtual drives like Pismo File Mount, Alchohol 120%, Daemon tool or even Microsoft’s Virtual CD ROM Control Panel.

Tip 7. Check Your Resolution:

The newly laucnhed screen types of laptop is another medium of power sink. Reduce the brightness to the appropriate level at which you can tolerate the visual with the help of Function key toggles or using the Display Settings in the Control Panel.

Tip 8. Unwanted Sounds:

Try to mute the speakers volume and avoid using multimedia software for better battery life. Also you can avoid sound schemes which are installed which may reduce your battery life.

Tip 9. Say no to Screensaver:

For best battery life, switch off the screensaver.

Tip 10. Avoid Glossy looks:

Newly programmed operating system such as Windows Vista come along with generic features such as ‘Aero Glass’ which are resource users. You can make it disable and can move to ‘Classic’ appearance which consumes less power. In Windows Vista, click on Desktop and then Preferences and then View Colour and then Appearance and then Classic Appearance and Windows Basic graphical interface. In Windows XP, right click and select properties and then Display Properties and then Theme and select Windows Classic.

Whereas operating system such as Linux and Macintosh, they are already better optimized for providing longer and powerful battery life.

"Owl," said Rabbit shortly, "you and I have brains. The others have fluff. If there is any thinking to be done in this Forest - and when I say thinking I mean thinking - you and I must do it." - A. A. Milne, The House at Pooh Corner

It's just weird. It'd be like going to a medical forum, and while everyone is talking about this new drug for treating diabetes, bring up how you saved a bunch of money on your car insurance because of this great plan.